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Finding the Fourth Proportional to 181,073.27, 249,869.31 and 100,496.90

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Solution

The fourth proportional to 181,073.27, 249,869.31 and 100,496.90 is: 138,679.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,073.27 : 249,869.31 = 100,496.90 : x
  2. Step 2: Convert to fraction form
    181,073.27/249,869.31 = 100,496.90/x
  3. Step 3: Cross multiply
    181,073.27x = 249,869.31 × 100,496.90
  4. Step 4: Simplify right side
    181,073.27x = 25,111,091,307.95
  5. Step 5: Solve for x
    x = 25,111,091,307.95/181,073.27
  6. Step 6: Final answer
    x = 138,679.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.